is it sharp on both ends? can I cut through a box or tape ?

The blade is only sharp on one side. Yes, it will cut through cardboard and tape.

Holding it your right hand palm to where the blade side is facing up, put your index finger on the right side "wing" that is now facing away from you. Push down on that "wing" and you'll see the blade coming out. If you open it all the way it will lock in place. In order to unlock it and get the blade back into the handle, take your thumb and push down on the bottom strip of silver metal that's inside the handle (push on the area of that metal strip where you see a gap near the top . Use your left hand to push on the right side (dull side) of the blade and you'll feel it uplock and you can push the blade back into the handle. There are some videos on YouTube you may find helpful for opening and closing these kinds of knives. If this knife really has a spring it must be pretty weak.

What does it say on the blade?

It means Patience, Brutality, or Secrecy in Japanese calligraphy...https://www.pinterest.com/pin/429179039462005455/

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Description

🌈 Slice through the ordinary with ninja precision and rainbow flair!

COMPACT POWERHOUSE - Measuring just 4.5 inches closed, it’s the perfect blend of portability and performance
BUILT TO LOCK LAST - Robust liner lock mechanism guarantees blade stays firmly in place during use
SECURE STYLISH CARRY - Integrated pocket clip ensures safe, convenient carry with ninja-inspired 3D sculpted handle
STRIKING RAINBOW FINISH - Eye-catching rainbow stainless steel blade and handle that stands out in any EDC lineup
SWIFT DEPLOYMENT ALWAYS READY - Spring-assisted opening for lightning-fast one-handed access

The Masters Collection MC-A030RB is a premium spring-assisted folding pocket knife featuring a 3.5-inch, 3mm thick rainbow stainless steel clip point blade with acid etching. Its rainbow stainless steel handle showcases a unique 3D sculpted ninja design, complemented by a secure liner lock and convenient pocket clip. Compact at 4.5 inches closed, this collectible EDC knife blends rapid deployment, artistic craftsmanship, and reliable self-defense functionality.

Specifications

Recommended Uses For Product	Fighting
Brand	Masters Collection
Model Name	MC-A030RB
Special Feature	Spring Assist
Age Range (Description)	Adult
Included Components	Knife
Handle Material	Stainless Steel
Color	Rainbow
Blade Material	Stainless Steel
Style	Modern
Theme	Everyday Carry
Power Source	Manual
Product Care Instructions	Hand Wash Only
Item Weight	200 Grams
Blade Shape	Clip Point
Blade Edge	Fine Edge
Reusability	Reusable
Customer Package Type	Standard Retail Box
Item Length	8 Inches
Global Trade Identification Number	00805319097129
Size	4.5"
Manufacturer	Master Cutlery Inc.
UPC	805319097129
Item Package Dimensions L x W x H	5.55 x 2.09 x 1.06 inches
Package Weight	0.21 Kilograms
Item Dimensions LxWxH	5.55 x 2.05 x 1.1 inches
Brand Name	Masters Collection
Material	Stainless Steel
Suggested Users	unisex-adult
Number of Items	1
Part Number	MC-A030RB
Model Year	2018

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